Oil-burner construction



Oct. 5, 1926. 1,602,364

, J. c. JOHNSON I OIL BURNER CYOINSTRIJICTIQN Filed Jan. 25. 1926 2 Sheets-Sheet 1 INVENTOR JESSE c. JOHNSON ATTORNEY Oct. 5, 1926.

J. c. JOHNSON OIL BURNER CONSTRUCTION Filed Jan. 25. 1926 Sheets-Sheet INVENTOR. JESSE c JOHNSON fnw w v ATTORNEYf.

Patented Oct. 5, 1926.

ET I; it T S JESSE C.'JOHNSO1\T', or OAKLAND, CALIFORNIA, AssIeNoIt re s. 'r. oIINsoN' 00., or I OAKLAND, CALIFORNIA. I

OIL-BURNER coNs'rnUc'rIoN.

Application filed January 23, 1926. Serial No. 83,284.

My invention has its application to an improvement in oil burner construction, particularly of the type employing a horizontally disposed rotary distributing .cup and 5 an air pressure means, enabling the supply- I I Figure 1 1s a vertical sectional view of the adjustable air nozzle, illustratin its position within the burner casing, %here only shown in fragment) and its relation to the distributing cup;

Fig. 2, a side elevational view of the outer side of the burner casing detail, illustrating the air nozzle adjustment;

Fig. 3, a detail of a cross sectional view of j the burner casing upon line III--III of Fig. 4, illustrating the manually actuated adjustin means of the nozzle member; and

I ig. 4, a central sectional view through the burner structure, illustrating the operative relation of the adjustable nozzle member therein.

Referring to the drawings, the present device is herein shown in connection with the discharge end of the burner casing 5, forming a tapered mouth portion, ending into an annular air nozzle 6. Formed interior of the burner casing 5 and spaced therefrom, is

an annular direction plate member 7, forman outletpassalge 8, for the air blast from in a in! blower F s own in Fig. 4 and pro-4 vided with air ports 11. The outer end of said direction late member 7, is inwardly formedto provide a tubular extension 9. A closing plate member 10, provided with a plural ty of circular openings 11, serving as 'air ports,.serves as an end member to saidtubular extension 9.

Slidably mounted within the tubular extension 9 is the annular air nozzle member 12, having a tapered and slightly contracted mouth portion 13 on its'outer end and extending approximately to the forward edge of the fuel distributing cup 14, being in a marginal spaced relation to both, the distributing cup 14 and to the casing nozzle 6. Thisconstruction is of considerable importance in preventing the adjustable nozzle member from sticking freeze to the supporting casing part of the burner.

From time to time it may be desirable to vary the eifective opening of the air nozzle 6 according to conditions as required. To accomplish this in the present instance, this annular air nozzle is provided. 1 This air nozzle member may be given a slidable adjustment to advance the same, as indicated 1n. dotted lines in Fig. 1, in order to reduce the air blast openingsurrounding the dis tributing cup, thus reducing the volume of the air blast to the fire box, or to retract the same to increase the air blast needed for combustion. j I

To adjust the air nozzle member 12 for this purpose, suitable means may be provided, in the present instance, in the form of a'shaft 13, extending through the casing 5 and through the direction member 7 and having bearing therein, the inner end of said shaft being reduced to some extent to form a dog 14, being positioned ofi' center and integral with the shaft 13. 4

The air nozzle member 12 is provided with a short elongated opening 15, of a size sufficiently large to receive the dog 14 in an operative relation. I

The outer end of the shaft 13 is provided with a suitable operating handle, endin in a milled head 16, which may be rocke to impart the slidable adjustments of the air nozzle member 12 to the extent desired. A

dog 17 is formed integral with said handle,

ports 11, on the closing plate member 10,

the air blast will be caused to passalong are both, the interior and the exterior Sides of the air nozzle member 12. The impinging air b1asts, i'ssuing from the interior and exterior peripheries ofthe air nozzle member 12, materially adding in further atomizing the fuel oil'and throwing the same forward into the fire box.

Having described my invention, what I claim and desire .to secure by Letters Patent 1s:

1. In an oil burner construction, a fuel distributing cup, a conical casing member ending into a nozzle, a blower for said burner having, in combination, an annular directing member interior of said casing member and spaced therefrom to form a conduit for the air blast from the blower, said directing member being provided interiorly with a tubular extension, an air nozzle member of tubular form, having a contracted end portion, slidably mounted within said tubular extension, being in a marginal spaced relation to the casing member nozzle and to the edge of the distributing cup, manually operated means associated therewith to advance said air nozzle member to reduce the air blast exhaust to the fire box, or to retract the same to increase the volume of the air blast.

72. In an oil burner construction having, in combination, a fuel oil distributing cup, a tapered casing member ending into an air nozzle,a blower for said burner, an annular air deflecting member interior of said casing member and in a spaced relation thereto to form a conduit for the air blastfrom the blower, said air deflecting member being interiorly of a tubular construction, an air nozzle member of tubular construction and having a contracted-outer end portion, slidably mounted within said tubular interior of said deflecting member, being in a spaced relation tothe casing member nozzle and to the edge of the distributing cup, means for slidable adjustments of the air nozzle member positioned exterior of the casing member in operative connection therewith, whereby the effective opening of the nozzle, for controlling the air blast, may be varied according to conditions as required and locking means to secure said nozzle member in dii fercnt positions of adjustment.

3. In an oil burner construction, having, in combination, a fuel oil distributing, cup, a tapered casing member ending into a nozzle, a blower for said burner, an annular air deflecting member interior of said casing and'in a spaced relation thereto to form a passage for the air blast from the blower, said air deflecting member being interiorly of a tubular construction, an air nozzle member of tubular form and having a contracted outer end slidably mounted Within said tubular part, being in a marginal spaced relation to the casing member nozzle and to the edge of the distributing cup, said tubular constructed deflecting member being at its inner end closed by a plate member provided with a plurality of openings serving as air ports for the admission of an air blast interiorly of said nozzle member, means for actuating said nozzle member and locking means to retain said air nozzlemember in dillerent positions of adjustment relative to the distributing cup.

In testimony whereof I aflix my signature.v

JESSE C. JOHNSON. 

